Double point rotary pin



March 3, 1936.

A. A. LIMPERT DOUBLE POINT ROTARY PIN Filed May 22, 1955 BY mwf@ ATTOR N EY WITNESS Parente Mer. e. lese I www@ EMME@ STAES @ATENE FFQE DOUBLE POKNT RTARY MN Arthur A. Limpert, Ann Arbor, Mich.

Application May 22, i935, Serial No. 22,85:

l. Claim. (Cl. 24-152) This invention relates to a rotary pin for sewith said bar and extending in opposite direccuring together fabrics and is especially adapted tions to one another and having their free ends to quickly and eiciently secure seat covers to pointed, as shown at l. The bar engages the the upholstery of an automobile without danger disc within the ange and the ears or lugs 3 are of injury or the tearing of either the seat cover bent over the spiral parts 6 at opposite sides oi? or the upholstery and has for the primary obthe bar thereby edectivelysecuring the pin porject the provision of a device of this character tion to the disc so that the pin portion may which will not work loose when in use and is be rotated in either direction by a tool t applied easy to operate, simple and durable in constructo the disc. The tool t includes a handle with 1U tion and may be manufactured and sold at a low a pointed portion e and spaced lugs t'. The 1o cost. pointed portion t extends through the interme- With these and other objects in view, this indiate slot while the lugs fit the other slots so vention consists in certain novel features of conthat the discs may be readily turned in either struction, combination and arrangement of parts direction. To secure layers of fabric together.

to be hereinafter more fully described and as shown in Figure 6, the pointed ends i are 15 claimed. brought in contact with one of the layers and For a complete understanding of my invenwith the tool applied to the disc and a slight tion, reference is to be had to the following depressure applied thereto with a turning movescription and accompanying drawing, in which ment the pin parts are caused to pass through Figure 1 is a perspective view illustrating a rothe layers of fabric with the discs overlying one :o tary pin constructed in accordance with my inlayer and the pin parts overlying the other layer,

vention. thereby effectively securing the layers together.

Figure 2 is a perspective view of the disc por- While it has been described in detail the applition of the pin. 1 cation of the pin to layers of fabric, the same Figure 3 is a side elevation illustrating the pin applies to the securing of seat covers to up- 5 portion of the pin. holstery of an automobile, as suggested'in Fig- Figure 4 is a plan view, partly in section, vure 5. To remove the pin from the fabric the showing the securing of the pin portion to the handle is turned in a reverse direction, causing disc portion of the pin. the pin parts to withdraw from the fabric with'` Figure 5 is a fragmentary perspective View out injuring or tearing the fabric. :31) showing the securing oi the seat covers to the The bar 5 is offset, as shown at Il, so that said upholstery of an automobile by pins forming the barv will not cross the intermediate slot or opensubject matter of the present invention. ing 2 and therefore will not interfere with the Figure 6 is a detail sectional view showing the `-pointed portion 9 of the handle when passed application of the pin to layers of fabric by a through said opening.

tool. Having described the invention, I claim: Y

Referring in detail to the drawing, the nu- A rotary pin comprising a anged disc having meral l indicates a flanged disc forming the body tool receiving openings for the purpose of rotatportion of a pin and is provided with a series of ing said'disc, a bar engaging the disc within the 40 openings or slots 2, one of which is centrally flange, Aoppositely extending spiral parts inte- 40 arranged. Spaced pairs of lugs 3 are formed on gral with the bar and having pointed free ends. the ange of the disc and the pairs of lugs are and ears formed integrally with the discs and oppositely disposed and are employed for secur= bent to overlie the spiral parts at opposite ends ing to the disc a pin portion 4. The pin portion of the bar.

6 consists of a bar E and spiral parts 6 integral ARTHUR A. LIMPERT. 45 

